Antifogging device



W. -F. LENHART ANTIFOGGING DEVICE June 6, 1933.

Filed Deo. 27, 1927 @Wfl/www? Wm I.' 9

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Patented June 6, 1933 i iiaiazor'j U'Nijriin sra'ras PATENT., Orifice iirLLIAMv F.' LENHAR'igf-orMARSHALL,M1CH1GAN, AssIGNon vfro semana-er1'.Iqiir'r` COMPANY, or onrcneainmnois, A CORPORATION oiiiLLINoIs l.airis-'1roeeiner DEVICE Ap'pncatio mea necember'a'?. 1927. serial no. 242,656.

- This invention relates to a show 'case and specifically to means for preventing vthe fogging of the glass of a show case.` Whileit is illustrated' herewith in connection :with a show case, it might equally well be' applied as a means' for preventing'the logging of any glass wheretwo or more glasses arev spaced so as ytoprovide a conlined air space between them. Oneobject of the invention is to provide vmeans. for removingffromthe air which is between the glassessuchrmoisture as may have accidentally/been entrapped there vrat the time the glasses were put in position, 4and also to remove ymoisture vwhich may 'have leaked in or otherwise vgotten'into the space.- in question@ Other objectsvwill appear from time totimein Hthe coursefof the specification and claims. v i Y I illustrate my invention more or less Adiagrammatically in the accompanying drawing wherein'e' Y throughout VFigure 1 is a `fragmentary elevation of a showcase;l J f f Figure 2 is avverticalcross line 2-2 otFigure 1;.

Figure 3 is a horizontal,y longitudinal cross section taken online 3-'3of Figure 2;

IFigure pis a detail elevational view with `parts in sectionand parts broken away show;- ing the method* of attaching! the containers. Like parts are indicated by like characters section taken on tionedfbetween the frame members A1. They are insulated on the frame members-bymeans ot cork or other suitable insulating material B1 and are held in'k :position generally by strips or members B2. On the inside .of each glass is aninsulating member B3. Y vr Y the conned .space .between each pair of glassesxis a troughv or other container C. A In the form here shown the trough isf metallic andfis provided with an opening C1 initstop and4 inwardly `bent tianges C2. There is preferably fixed across Vthe open top a screen C3. 'While in its preferred Jform thememb'er C3 is a screen, any suitable perforated lor partially open member Positioned within n and yet when the rspecification" and drawing. A is a show case.l A1,!A1 areframe vmeml might be used. It is suficient Vfor the pur-l, 'ze'.

poses of the invention thatthisymember vvbe suiiciently open'to: permit the kpassage of vair'v through it into the trough C.- s )pposite each .of the spacesbetween the pairs of glass vand formed'inthe adjacent frame member VA1 is a perforation or open-l ing C4. This isfpreferably closed by a removable coverC5 which is provided onits inside with an insulated part C6.

Dis a tray. It is provided top and -is of. such sizeras to permit insertion and movement along the trough C. yEach of' the trays D is preferablyL provided with adownwardly bent' hooked end D1.Y By this meanssuccessive trays maybe joined to each other so that they can all be movedin unison with open v as though onesingle long trayvwere used of the: show case each separate tray may be separately connected or disconnected and thus Vonly limited space needs be kept available atthe end of the show case to permit movement,manipulation, insertion or removal of the trays.y Eachof the trays is filled'with any suitable hygroscopic material Y The use and operation of my invention are as follows:` 'v

' The showcase'is assembled in the form vshown with the outer metallic trough fixed in` place between each of the vpairs of glasses so that each conlined spaced -which is formed between the glasses is vprovided in its bottom been built a sufficient number of the trays 'Y are filled" with hygroscopic material and they are then slid into ythe troughs and the cover at the end of the opening is replaced. .Thus

-vthereisprovidedv inr each of the confined spaces'between the ,glasses acontainer which 'is of hygroscopic material and absorbs'fromthe air the moisture which is within it. The

'and fresh hygroscopic material will bein- Vsertediand .thenvthe traysmay then be put back in position.v Thus the-space between the glassesr is kept substantially free from Amoisture and logging or *clouding of l the being put into or takenrout with such a trough. When the show case has a part adapted to interlock with an adjacent -member. Y

2. In combination, a pair of glass members mounted together to form an inclosed space, means for vrendering the air betw'eenthem dry, inclu-ding a permanent containing member having an open top and a removable containing member, said removable containing member located within the permanent member and filled with a hygroscopic material, there being an opening from said air tight space anda closure therefor, to permit insertion and removal of a plurality of such removable members into and from said en` vclosed space, each of such members provided .with a part adapted to interlock with an adj acent member.

3. In combination in a show cas-e, a double glass iv'all including spaced panes defining a confined airspace, ysaid case having an opening to such air space, an open ended trough'in the bottom of such confined space, a perforated cover positioned thereon, the opening-in the case being alined with the open endof the'tr'ough, and one or more removabley 'containers adapted to fit into said trough in such air spa'ce'andto contain hygroscopic material, said containers being movable into and out of said trough through said case opening in a plane parallel to the planes of said panes.

In .combination in ashow case, a double glass wall including spacedA panes defining a confined air space, said case having an opening to such air space, a removable cover therefor', an open ended trough in the bottom of such confined space, a perforated cover positioned thereon, the opening in the case being alined with the open end of the trough, and one or more removable containers adapted to fit into said trough in such air space and to contain hygroscopic material, said containers being movable into and out of said trough through said case opening in a plane parallel to the planes of said panes.

5. In combina-'tion in a double wall, a pair of glass members forming said wall and mounted together to form an inclosed and generally air tight space, including a generally elongated portion adapted to receive one or more removable container members,

Leiaeo means for rendering the air between the glass members dry, including a removable containing member, said removable containing member filled with a hygroscopic ma'- terial, there being an opening from said air tight space and a closure therefor, said opening and closure being operatively positioned with respect to the elongated container receiving portion of said space, to permit insertion and removal of a plurality of such removable members into and from said in- `closed space, in a generally straight line parallelto the planes of said glass members, said members being provided with interlocking features whereby they may be interconnected for.'pass'afge"through said opening in a longitudinal series.

6. In combination in a double wall, frame members, a pair of glass members forming said wall and mounted in spaced relation in said frame members to form an inclosed space, means for rendering the air between them dry, including an open'ended fixed containing member having an open top positioned between said glass members, and a removable open top containing member, said removable open top containing member being filled with a hygroscopic material and insertable vvwithin the iiXed containing member through the open end thereof, there being an opening through one of said frame members' from said inclosed space, alined With the-end opening of said fixed container member,anda removable closure therefor, whereby to permit insertion and removal of such removablemember into and from said fixed containing member within the inclose'd space.

7. In combination in a double wall, a pair of glass members forming said wall and mounted togetherto form aninclosed space, means lfor rendering the air between them dry, including a fixed containing member and a. removable containing member, said 'removable containing member located within the fixed member and vfilled with a hygroscopi'c'material, there being an opening from said air tight space and a closure therefor, said closure and opening being positioned with'respect to the iiXed containing' member so as to permit insertion and removal :of a plural-ity'of such removable members into and from said enclosed space,

ina straight line generally parallel to the plane of said glass members, said removable containing members-being provided with cooperative means for vconnecting said members in a longitudinal series.

8. In combination in a Vdouble wall, a pair of glass members forming Isaid wall vand i mounted together Tto form an inclosed space, means for 'rendering lthe air between them dry, including va fixed containing member having an open top and a removable containing member, said removable containing member located Within the fixed member `and filled with a hygroscopic material, there be'- ing an opening from said airtight space and y a closure therefor, said closure and opening 5 being positioned with respect `to the lixed containing member so as to permit insery tion and removal of a plurality of such re movable members into and from said enclosed space, in a 'straight line generally par l0 allel to the plane of said glass members', said removable containing members being provided with (3o-operative means for connectc infr said members in longitudinal series. ligned at Marshall county of Calhoun 15 and State of Michigan, this 14th `day of December 1927. Y

WILLIAM; F. LENHART. 

